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Finding the Fourth Proportional to 73,657.28, 110,485.86 and 18,253.28

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Solution

The fourth proportional to 73,657.28, 110,485.86 and 18,253.28 is: 27,379.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,657.28 : 110,485.86 = 18,253.28 : x
  2. Step 2: Convert to fraction form
    73,657.28/110,485.86 = 18,253.28/x
  3. Step 3: Cross multiply
    73,657.28x = 110,485.86 × 18,253.28
  4. Step 4: Simplify right side
    73,657.28x = 2,016,729,338.62
  5. Step 5: Solve for x
    x = 2,016,729,338.62/73,657.28
  6. Step 6: Final answer
    x = 27,379.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.